I'm going to go further into saying why this statement from Brownback bothers me. It's because he was an evangelical and now believes that the RCC is the "original" church. This indicates that the RCC is doing a good job of convincing people this is true.
This parallels a movement of a growing number of evngelicals who are blurring the distinction between biblical teachings and Roman Catholic teachings. I see more and more books now, some coming from the Emergent Church (but not all), that quote and admire the Catholic mystics, many of whom were counter-reformation. There is even a prof. at a So. Baptist seminary who says that one of his favorite saints is Francis de Sales. Francis de Sales was sent by the RCC to Switzerland to try to convert the Calvinists back to the RCC. He says this all with a chuckle, and then adds, "Those Calvinists are pretty hard to convert." Well, I would hope so! If they've gone from the RCC to sola scriptura and sola fide, I would hope that not only would they would not "go back," but that a So. Baptist professor would not admire a Counter Reformation missionary from the RCC who goes to get them to return to the RCC. But he does.
I see people quoted like Julian of Norwich, Mme Guyon, Teresa of Avila, Meister Eckhart, and others. Many of these people had very problematic theology. Eckhart basically was a pantheist or panentheist and his ideas are quoted and taught in New Age books.
Julian of Norwich, for example, taught from visions she said came from God. One of her gems is that God revealed that the fall in the Garden was an "accident" and that God is not mad about it at all. Her constant theme was that we should have a "one-ing" with God. I'm supposed to learn from her and admire her? Sorry, no dice. I consider her a false teacher, and Eckhart as well.
I am not one of those virulent anti-RCC people. I do not think the RCC is the whore of Babylon, but I am concerned that a growing number of evangelicals are forgetting what the Reformation was about and are accepting RCC mystics as authentic teachers of Christian thinking. I even see such books that quote these mystics in my church and I know of them being used in other churches. I consider it a very serious issue, because falling away from truth does not happen overnight, but gradually. And I don't think seductive evil beliefs appear as evil, but they appear good and spiritual. That's why their seductive.
If I had thought it about this some more, I maybe would have started a thread on the blurring of biblical evangelicism with other beliefs rather than just Brownback.